Sliding-door fastener.



No. 869,202. f PATENTBD 00T. 22. 1907.

` R. T. STONE.

SLIDING DOOR FASTENER.

APPLIGATION FILED 113.26, 1907.

/3 i= Witnesses v j? 550726;

ROLLA T. STONE, OE KEYSTONE, WASHINGTON.

. SLIDING-DOOR FASTENER.

Specification of Letters Patent.

Patented Oct. 22, 1907.

Application filed February 26, 1907. Serial No. 359,376.

To all 'whom il may concern.'

Be it known that 1, RoLLA T. STONE, citizen oi the United States ol America7 residing at lxcystone, in the county of Adams and State of Vashington, have invented new and useful Improvements in Sliding-Door Fasteners, oi which the following is a speciiication.

This invention relates to sliding door fasteners, and one oi the principal objects oi the same is to provide a simple and eilicient automatic latch and lock ior sliding doors which will securely lock the doors closed against operation irom the outside, or from the opposite side oi the doors to which the lock is secured.

Another object oi the invention is to provide a pivoted spring operated latch which will ride upward upon a stationary part of the latch and be forced downward behind it by means oi a spring.

Still another object ol my invention is to provide means lor attaching a seal to the latch for use on car u doors and other places requiring a sealed lock.

These and other objects may be attained by means ot the construction illustrated in the accompanying drawing, in which:

Figure l is a side elevation oi a lock made in accordance with my invention; and shown in locked position upon the inside oi a pair ol sliding doors, the latter being shown broken away. Fig. 2 is a similar view showing the lock or latch in a position which it assumes during the movement oi one oi the doors toward the other. Fig. 3 is a longitudinal vertical section through the lock, the latch bar being shown in locking position. Fig. 4 is an end view oi' the lock. Fig. 5 is a plan view oi the stationary bar or keeper.

Referring to the drawing lor a more particular description of my invention, the numerals lv designate the two sliding doors which may be of the usual or any suitable type. Secured to one of these doors is the main bar 2 oi my lock, said bar having a recess or open slot 3 at one end thereof, and outwardly curved or Haring members iat each side of said recess 3. The bar 2 is secured to the door by moans of suitable bolts 5. Upon the upper edge oi the bar 2 a recess (i is provided7 and pivoted in this recess upon a pin 7 is the latch member S, said latch member having` a curved iront surface 9, and a square shoulder l0, the purposes oi which will presently appear. A spring l1 is secured to the top of the bar 2, and its end is seated against a shoulder 12 formed on the latch member S, the tendency oi said spring being to throw the latch member down in position shown in Fig. 3. A cover member 13 is pivoted upon a pin la passing formed on the bar 2, said cover being hollowor recessed to inclose the spring l1 and to protect the same, the iront end ol said cover having a sliding connection with through a lug 15 l l l l the latch member 8 by means oi a cross-pin 16 sliding in a slot 17 in the latch plate 8. The stationary bolt or bar 1S is secured to the other sliding member of the door, said bolt having a head provided with oppositely projecting portions i9, a plain shoulder 2O and a rounded shoulder 2]., as shown more particularly in Fig. 5.

The operation oi my invention may be briefly described iollows: As one ol the door members moves toward theother', the curved surface 9ct the latch member rides up on the curved shoulder 2l of the stationary bolt or member 1S until the plain shoulder 10 reaches the shoulder 20 on said bar when the spring 11 throws the latch member S down to the position shown in Figs. 1 and 3, the end oi the latch member 8 passing through an aperture 22 in the member 4 oi' the bar 2. 1n this position the two doors are hrmly locked together and cannot be unlocked l'rom the outside. A slot 23 in thelower end oi the latch member 8 may be utilized lor connecting a seal whenever such a device is desired.

From the foregoing it will be obvious that a latch or lock `made in accordance with my invention is comparatively simple in construction, may be quickly api plied to sliding doors, is automatic in its locking action, and is reliable and eilicient in use.

Having thus described the invention, what 1 claim is:

1. A sliding door' fastener comprising a recessed bar, a latch member pivoted to said har and provided with :'l curved and a plain shoulder, a spring bearingagainst said latch member, a cover pivoted to said bar and to said latch member, and u stationary bolt havingl a curved shoulder and a plain shoulder for cooperation with the latch 1nember. substantially as described.

2. A sliding door fastener comprising a recessed bar, a latch member pivoted thereto, said latch member having a curved front shoulder and a plain rear shoulder, a cover pivotedV to the bar, and slidingly connected to the latch member, a spring for normally holding,l the latch member down, and a stationary bar or bolt provided with a curvedshonlder and a plain shoulder, substantially as described. 3 A sliding door fastener' comprising a bar having` a recessed end, and oppositely flaring members, a latch pivoted in a recess in said bar and provided with a curved and a plain shoulder, a springl bearing against said latch member to normally hold it down, a cover pivoted to said bur and slidingly connected to said latch member by means oi a pin and slot connection, one of the flaring members on said bar having an aperture therein through which the end oi the latch bar passes, said latch bar being provided with a slot for the attachment of a seal, substantially as described.

In testimony whereof, l aiiix my two witnesses.

signature in presence of HOLLA T. sroNn.

Witnesses C. P. Din', D. W. CIRCLE. 

